7009L15PFG

Memory IC Overview

The 7009L15PFG is a high-speed 128K x 8 Dual-Port Static RAM designed for standalone or Master/Slave configurations. It features true dual-ported memory cells allowing simultaneous reads of the same location, on-chip port arbitration logic, and hardware semaphore signaling. The device operates fully asynchronously from either port with TTL-compatible single 5V power supply (±10%). It includes an automatic power-down feature controlled by CE for low standby power and supports battery backup operation with 2V data retention. Available in a 100-pin TQFP package.

Memory IC Feature Summary

• True dual-ported memory cells enabling simultaneous reads of identical memory locations
• On-chip port arbitration logic with full hardware support for semaphore signaling between ports
• Fully asynchronous operation from either port with automatic power-down capability
• TTL-compatible single 5V power supply with battery backup support for data retention

Memory IC Applications

• Standalone 1M-bit Dual-Port RAM systems
• Master/Slave Dual-Port RAM combinations for 16-bit or wider word systems
• High-speed data buffering requiring simultaneous access from two independent processors

Memory IC Procurement Notes

Verify component status as the 7009L15PFG is listed as obsolete. Confirm availability through authorized distributors or surplus channels. Check for lead-free variants if required by specific assembly processes. Ensure compatibility with existing 100-pin TQFP footprints during replacement planning. Validate temperature grade specifications against system requirements before procurement.

Memory IC Selection Notes

Select this component when simultaneous read access to shared memory is critical. The 128K x 8 organization suits applications needing moderate density with high speed. Consider the 100-pin TQFP package for surface-mount assembly constraints. Verify that the 5V TTL interface matches the host system logic levels. Evaluate the need for hardware semaphore support to simplify synchronization design.

Memory IC Part Context

The 7009 series represents Renesas' high-performance dual-port SRAM family. These devices are engineered for complex embedded systems requiring fast, conflict-free memory sharing. The 7009 specifically targets 128K-bit capacity needs with advanced arbitration features. It complements other members like the 7006 and 7008 in the broader portfolio.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: None identified.